Gun attachment.



G. P. RIGGS.

GUN ATTACHMENT. APPLICATION FILED AUG. 2. 1909.

I Patented Apr. 19,1910.

GEORGE P. RIGGS, OF ST. MARYS, WEST VlIRGINIA/ GUN ATTACHMENT.

Specification of Letters Patent.

Patented Apr. 19, 1910.

Application filed August 2, 1909. Serial No. 510,895.

To all whom it may concern:

Be it known that I, GEORGE P. RIGGS, a citizen of the United States ofAmerica, residing at St. Marys, 'in the county of Pleasants and State ofWest Virginia, have invented certain new and useful Improvements'in GunAttachments, of which the following is a specification, reference beinghad therein to the accompanying drawing.

This invention relates to a gun attachment, and more particularly tothat type of attachment commonly styled a silencer for preventing allexplosion noise.

The object of my invention is to provide a simple, durable andinexpensive silencer attachment that will not interfere with thebalance, sighting, velocityv or accuracy of a gun to which the same isattached.

A further object of the invention is to provide a gun attachment thatwill reduce the recoil to a minimum, and that can be easily attached toand rempved from a gun, the attachment being of a small size to permitof the same being easily carried when not in use.

These and such other objects as may hereinafter appear are attained by adevice that will be presently described in detail and then claimed.

Referrin to the drawing :-Figure 1 is an elevation 0% a gun providedwith my attachn1ent,'Fig. 2 is an enlarged elevation of the attachmentpartly broken away to more clearly show the interior construction of thesame, Fig. 3 is a longitudinal sectional view of the attachment, Fig. 4is a cross sectional- View of the same, and, Fig. 5 is a view of therear end of the attachment. Q

In the drawings 1 denotes a cylindrical shell or casing having theforward end thereof closed by a circular plate 2, which isprovided witha small opening 3 adjacent to the upper edge thereof. The rear end ofthe shell or casing 1 is closed by a circular plate 4 and this plateadjacent to the up er edge thereof is providedwith a circu ar opening 5of a greater diameter than the opening 3. The openings 3 and 5 aline andboth are eccentric to the axis of the shell or casing. Fixed in theopening 5 is the forward end of a split or bifurcated sleeve 6 adaptedto fit over the forward end-of .a gun barrels, said sleeve being held inengagement with the gun barrel by aclamp 7 having depending aperturedparallel lugs 9 edges thereof.

which are drawn toward each other so as to clamp the sleeve 6 on thebarrel 8 by a set screw 9 The clamp 7 is adapted to frictionally holdthe sleeve in engagement with the barrel.

Within the shell or casing 1 in closer proximity to the rear end thereofthan the front end are a plurality of disks 10 corresponding in diameterto the inner diameter of the shell or casing 1. Each disk is providedwith a radially disposed slit or cut 11 extending from, the periphery tothe axis of the disk and the slitted edges of each disk are bentoutwardly or spread laterally, whereby when a plurality of disks areassembled the slitted edge of one disk will engage the slitted ed e ofan adjoining disk. The slitted edges of the adjoining disks are rivetedor otherwise secured together to form a spiral formation, not only inconnection with the disks, but with the slitted This arrangement of thedisks provides a spiral or sinuous passage for air, smoke or gases fromthe rear end of the shell or casing to the forward end thereof, and itis this retardation in the passage of gases that muflles the noise madeby a detonation. Spacing pieces 12 are arranged between the disks tomaintain said disks an equal distance apart.

To provide clearance for the bullet or projectile passage from the gunbarrel 8,the disks 10 near the upper edges thereof are provided withlongitudinally alining openings 13, said openings alining longitudinallywith the small opening 3 at the forward end of the shell or casing andwith the bore'of the gun barrel 8.

I have illustrated the shell or casing as having a plurality of disksoccupying approximately 'one-third of the space within the shell orcasing, and reserve the right to reduce the number of disks shown or toincrease the same according to the caliber of the gun in connection withwhich the silencing attachment is used.

The attachment is made of light and durable metal finished to harmonizewith the metallic parts of the gun.

Having now described my-invention, What I claim as new, is

1. A silencing attachment for fire arms, comprising a cylindrical shell,means carried by the inner end of the shell for clamping the same to agun barrel at the end thereof llo eccentric to the gun barrel, aplurality of and the opening in the forward end of the slitted apertureddisks arrangedwithin said shell.

shell and having the slitted edgesof each 3. Asilencing device for firearms,compris- I disk spread laterally and secured to the ing a shellimperforate except in linewiththe slitted edges of adjacent disks toprovide a bore of the barrel and eccentrically connect- 'sinuous passagefor gases passing through ed to the barrel at the muzzle thereof, and

the shell, the apertures in said disks alining means for effectingdissipation of the energy.

to provide a passage for a bullet from the of gases following thedischarge of a progun, the said apertures being eccentric to jectilethrough the shell said means comthe axes of the disks. prising aplurality of disks fitted within the 2. A silencing attachment for firearms shell and each disk slitted from the pecomprising a shell adaptedto be clamped riphery inwardly toward the axis thereof, upon a gunbarrel and when in position lie the slitted edges of the disks beingspread eccentric to the barrel, a plate closing the laterally from eachother and secured to the .forward end of said shell and provided withslitted edges of adjacent disks whereby a an opening eccentric to theaxis of the shell sinuous "passage is provided for the gases, andalining with the bore of the gun barrel, the disks being provided with--alined openand a plurality of disks arranged within the ings which areconcentric to the end openshell and secured together, each. disk slittedings in the shell and eccentric to the axes of from the peripherythereof and having the the disks andaxis of the shell.

slitted edges spread apart and secured to In testimony whereof I affixmy signature the slitted edgesof adjoining disks whereby in the presenceof two witnesses.

the disks form a sinuous passage for gases passing through the shell,the disks being GEORGE provided with alining openings which areWitnesses: eccentric to the axes of the disks and shell F. K. SELLERS,

and concentric to the bore of the gun.barrel TYNDALL DINSMORE.

